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annotate src/gpf2/osl/os_drv.c @ 487:91e8dac34ada

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src/gpf2/osl: initial import from old freecalypso-sw tree
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 22 Jun 2018 05:56:16 +0000
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children 045d641c9bfa
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487
91e8dac34ada src/gpf2/osl: initial import from old freecalypso-sw tree
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1 /*
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2 * This C module is a reconstruction based on the disassembly of
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3 * os_drv.obj in frame_na7_db_fl.lib from the Leonardo package.
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4 */
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5
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6 /* set of included headers from COFF symtab: */
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7 #include "gpfconf.h" /* FreeCalypso addition */
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8 #include "../../nucleus/nucleus.h"
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9 #include "typedefs.h"
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10 #include "gdi.h"
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11 #include "os.h"
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12
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13 typedef unsigned char u_char;
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14
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15 extern OS_HANDLE os_ext_pool_handle;
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16
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17 static u_char *HISR_Stack;
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18 static T_DRV_SIGNAL *SignalID;
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19 static void (*DrvCallback)(T_DRV_SIGNAL *);
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20 static NU_HISR CallBack_HISR;
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21
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22 #define CB_HISR_STACK_SIZE 1024
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23
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24 GLOBAL LONG
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25 os_ExecuteCallback(OS_HANDLE Caller, void (*Callback)(T_DRV_SIGNAL *),
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26 T_DRV_SIGNAL *Signal)
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27 {
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28 DrvCallback = Callback;
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29 SignalID = Signal;
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30 NU_Activate_HISR(&CallBack_HISR);
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31 return(OS_OK);
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32 }
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33
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34 static void
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35 CallbackFunc(void)
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36 {
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37 DrvCallback(SignalID);
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38 }
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39
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40 GLOBAL LONG
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41 os_CreateCallback(void)
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42 {
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43 if (os_AllocateMemory(OS_NOTASK, (T_VOID_STRUCT **) &HISR_Stack,
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44 CB_HISR_STACK_SIZE, 0xFFFFFFFF,
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45 os_ext_pool_handle) == OS_ERROR)
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46 return(OS_ERROR);
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47 if (NU_Create_HISR(&CallBack_HISR, "CB_HISR", CallbackFunc, 2,
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48 HISR_Stack, CB_HISR_STACK_SIZE) == NU_SUCCESS)
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49 return(OS_OK);
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50 else
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51 return(OS_ERROR);
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52 }